21182128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1973}}^1$

素因数の和:2053

約数の個数: 40

約数和(自身を含む): 45528336

約数和(自身を除く): 24346208

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1973, 2684, 3946, 5368, 7892, 10736, 15784, 21703, 31568, 43406, 86812, 120353, 173624, 240706, 347248, 481412, 962824, 1323883, 1925648, 2647766, 5295532, 10591064, 21182128]

約数ペア:

[(1, 21182128), (2, 10591064), (4, 5295532), (8, 2647766), (11, 1925648), (16, 1323883), (22, 962824), (44, 481412), (61, 347248), (88, 240706), (122, 173624), (176, 120353), (244, 86812), (488, 43406), (671, 31568), (976, 21703), (1342, 15784), (1973, 10736), (2684, 7892), (3946, 5368)]